1 /*
2 * Copyright (c) 2017, 2020, Red Hat, Inc. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 /*
26 * @test id=passive
27 * @summary Tests that we pass at least one jcstress-like test with all verification turned on
28 * @requires vm.gc.Shenandoah
29 * @modules java.base/jdk.internal.misc
30 * java.management
31 *
32 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions
33 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
34 * -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify
35 * TestVerifyJCStress
36 *
37 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions
38 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive
39 * -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify
40 * TestVerifyJCStress
41 */
42
43 /*
44 * @test id=default
45 * @summary Tests that we pass at least one jcstress-like test with all verification turned on
46 * @requires vm.gc.Shenandoah
47 * @modules java.base/jdk.internal.misc
48 * java.management
49 *
50 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions
51 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
52 * -XX:+ShenandoahVerify
53 * TestVerifyJCStress
54 *
55 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions
56 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact
57 * -XX:+ShenandoahVerify
58 * TestVerifyJCStress
59 */
60
61 /*
62 * @test id=iu
63 * @summary Tests that we pass at least one jcstress-like test with all verification turned on
64 * @requires vm.gc.Shenandoah
65 * @modules java.base/jdk.internal.misc
66 * java.management
67 *
68 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions
69 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu
70 * -XX:+ShenandoahVerify
71 * TestVerifyJCStress
72 */
73
74 /*
75 * @test id=iu-c1
76 * @summary Tests that we pass at least one jcstress-like test with all verification turned on
77 * @requires vm.gc.Shenandoah
78 * @modules java.base/jdk.internal.misc
79 * java.management
80 *
81 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions
82 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu
83 * -XX:+ShenandoahVerify -XX:TieredStopAtLevel=1
84 * TestVerifyJCStress
85 */
86
87
88 import java.util.*;
89 import java.util.concurrent.*;
90 import java.util.concurrent.locks.*;
91
92 public class TestVerifyJCStress {
93
94 public static void main(String[] args) throws Exception {
95 ExecutorService service = Executors.newFixedThreadPool(
96 2,
97 r -> {
98 Thread t = new Thread(r);
99 t.setDaemon(true);
100 return t;
101 }
102 );
103
104 for (int c = 0; c < 10000; c++) {
105 final Test[] tests = new Test[10000];
106 for (int t = 0; t < tests.length; t++) {
107 tests[t] = new Test();
108 }
109
110 Future<?> f1 = service.submit(() -> {
111 IntResult2 r = new IntResult2();
112 for (Test test : tests) {
113 test.RL_Us(r);
114 }
115 });
116 Future<?> f2 = service.submit(() -> {
117 for (Test test : tests) {
118 test.WLI_Us();
119 }
120 });
121
122 f1.get();
123 f2.get();
124 }
125 }
126
127 public static class IntResult2 {
128 int r1, r2;
129 }
130
131 public static class Test {
132 final StampedLock lock = new StampedLock();
133
134 int x, y;
135
136 public void RL_Us(IntResult2 r) {
137 StampedLock lock = this.lock;
138 long stamp = lock.readLock();
139 r.r1 = x;
140 r.r2 = y;
141 lock.unlock(stamp);
142 }
143
144 public void WLI_Us() {
145 try {
146 StampedLock lock = this.lock;
147 long stamp = lock.writeLockInterruptibly();
148 x = 1;
149 y = 2;
150 lock.unlock(stamp);
151 } catch (InterruptedException e) {
152 throw new RuntimeException(e);
153 }
154 }
155 }
156
157 }